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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 9 |
| 3 | 12 |
| 4 | 13 |
| 5 | 14 |
| 6 | 15 |
| 7 | 16 |
| 8 | 18 |
| 9 | 20 |
| 10 | 21 |
| 11 | 22 |
| 12 | 24 |
| 13 | 31 |
| 14 | 32 |
| 15 | 33 |
| 16 | 35 |
| 17 | 39 |
| 18 | 41 |
| 19 | 42 |
| 20 | 43 |
| 21 | 44 |
| 22 | 55 |
| 23 | 56 |
| 24 | 57 |
| 25 | 58 |
| 26 | 59 |
| 27 | 60 |
| 28 | 61 |
| 29 | 62 |
| 30 | 65 |
| 31 | 67 |
| 32 | 72 |
| 33 | 73 |
| 34 | 74 |
| 35 | 79 |
| 36 | 107 |
| 37 | 108 |
| 38 | 109 |
| 39 | 110 |
| 40 | 113 |
| 41 | 114 |
| 42 | 115 |
| 43 | 116 |
| 44 | 131 |
| 45 | 159 |
| 46 | 219 |
| 47 | 220 |
| 48 | 271 |
| 49 | 319 |
| 50 | 341 |
| 51 | 342 |
| 52 | 1567 |
| 53 | 1568 |
| 54 | 1571 |
| 55 | 1572 |
[6,9,12,13,14,15,16,18,20,21,22,24,31,32,33,35,39, 41,42,43,44,55,56,57,58,59,60,61,62,65,67,72,73, 74,79,107,108,109,110,113,114,115,116,131,159,219, 220,271,319,341,342,1567,1568,1571,1572] |